The crux of Hume's Problem is how human beings obtain knowledge about universal law from experience.Hume's Problem is related to inductive inference at three levels:inference concerning cause and effect(or notion of cause and effect),the assumption of uniformity and empiricist epistemology.It can be approached in terms of the Bayesian Inference.Hawthorne thinks that the Bayesian Inference is a version of eliminative induction,which consists of the version of hypothetical reasoning and that of disjuctive reasoning.Then can Hume be satisfied with the Bayesian Inference?He can be satisfied with the Probability theory because the latter is similar to geometry,but not by the conclusion of the Bayesian Inference.That is,one can accept a conclusion of induction not in the light of sense but of reason.Knowledge from experience is in flux as it is revisable.